> I'm afraid this is the number 1 xpath gotcha. Your nlog element is in a
namespace and you are searching for nlog elements in no namespace.
>
> The framework in which you are executing the XPath expression should give
you some means of binding a prefix to the namespace, for example
>
> setNamespaceBinding("n", "http://www.nlog-project.org/schemas/NLog.xsd")
>
> You can then use the path expression "/n:nlog/@throwExceptions"

Hi Michael,
Looks like I am out of luck, according to
https://sourceforge.net/p/wix/bugs/2384/
the WIX toolset neglects to implement this functionality.

There goes a day writing a custom action to do this the hard way:(

Thanks for the confirmation and insight!
jlc